At some point I may add a G19 to the stable. If I do so and load it for carry/HD, it may very well be loaded with +P+ ammo. This is simply because I'm a big fan of the Win Ranger 127gr +P+ JHP round and consequently happen to possess a fair amount of it. That's my own choice and I'm willing to accept the consequences that accompany this decision. My expectation is that it'll perform flawlessly (this would first be tested extensively at the range, of course).
For those new to shooting, the entirety of this thread should be considered...especially the opening post. Basically, it's important to recognize that there is no CYA policy if your Glock blows up with higher pressure ammo, and running a steady diet of it through your gun probably isn't a great idea. Running a limited amount of it through your gun (testing) and carrying it is probably a safe bet in my opinion. But that's my opinion about your gun....FWIW.
Not a lover or even necessariliy a preferer of Glock, but I do believe in their performance. I'll be first in line to tell you the grip angle and resulting sight picture annoy me. The trigger isn't my favorite either. But in my experience they offer excellent weight/capacity ratio, shoot well for me, and just plain work.